Top 41 Sr ui developer Jobs in Pasadena, Ca

Senior iOS SDK Engineer
Everforth —Los Angeles, CA
- $250,000 - $380,000 a year
- Full-time
- Remote
- APIs
- Fair chance
- Senior level
- Dental insurance
- Parental leave
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Senior iOS SDK Engineer
Everforth —Los Angeles, CA
- Full-time
- Remote
- APIs
- Fair chance
- Senior level
- Dental insurance
- Parental leave
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Sr. Fullstack Product Engineer - (Frontend Focus)
Salt Ai —Los Angeles, CA
- $140,000 - $180,000 a year
- Full-time
- Remote
- Senior level
- Leadership
- Under 1 year
- Health insurance
- Dental insurance
Quick Apply
Senior Front End React Developer/Engineer
Glenair —Glendale, CA
- Full-time
- 5 years
- Senior level
Quick Apply
Sr Guidewire Portal Developer
V-Solve Inc —Los Angeles, CA
- Contract
- Office
- SQL
- Senior level
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Sr Software Engineer
Disney Entertainment and ESPN Product & Technology —Santa Monica, CA
- $145,400 - $208,400 a year
- Computer Science
- 5 years
- AWS
Senior Software Engineer (Frontend), Social
PlayStation Global —Los Angeles, CA
- $177,300 - $265,900 a year
- On call
- Computer science
- Computer Science
- 5 years
- Wellness program
- Health insurance
Senior Software Engineer, Home Infrastructure, Frontend and Protocols
Google —Los Angeles, CA
- $174,000 - $253,000 a year
- Full-time
- Computer science
- Computer Science
- System design
Senior Front-End Engineer
Gallatin —El Segundo, CA
- $80,000 - $210,000 a year
- Full-time
- Mentoring
- Senior level
- Health insurance
- 401(k)
Senior Staff Engineer Frontend
Lendistry —Los Angeles, CA
- $111,200 - $185,000 a year
- Full-time
- 6 years
- Management
- Bachelor of Science
- Health savings account
- Paid holidays
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Sr. Software Development Manager, Builder Lead, Ring Web Teams
Amazon.com Services LLC —Hawthorne, CA
- $220,100 - $297,700 a year
- Full-time
- 5 years
- System design
- Product management
- AD&D insurance
- Health insurance
Kotlin Multiplatform Engineer (Senior-Staff Levels)
Cantina Labs —Los Angeles, CA
- $180,000 - $230,000 a year
- Full-time
- 8 years
- APIs
- Senior level
- Health insurance
- Dental insurance
Senior Product Software Engineer - Frontend
Disney Entertainment and ESPN Product & Technology —Santa Monica, CA
- $148,700 - $199,400 a year
- Computer science
- Azure
- Computer Science
Android Engineer (Senior-Staff Levels)
Cantina Labs —Los Angeles, CA
- $180,000 - $240,000 a year
- Full-time
- 8 years
- Senior level
- Health insurance
- Dental insurance
Senior Angular Frontend Developer
MyTime —Los Angeles, CA
- Full-time
- Computer science
- Computer Science
- 5 years
- Health insurance
Quick Apply
Senior Mobile Infrastructure Engineer, Ambient AI
Commure —Los Angeles, CA
- $170,000 - $240,000 a year
- Full-time
- HIPAA
- Mentoring
- Senior level
Senior Front-end Web Developer
GM —Playa del Rey, CA
- $85,000 - $105,000 a year
- Full-time
- Background check
- Software troubleshooting
- DevOps
- Health insurance
- 401(k)
Quick Apply
3d
Senior Android Engineer (Fable Core)
Scribd, Inc. —Los Angeles, CA
- $151,000 - $226,000 a year
- Full-time
- 5 years
- Residential
- Mentoring
- Paid parental leave
- Disability insurance
3d
Senior Software Engineer
The TCW Group, Inc. —Los Angeles, CA
- $125,000 - $190,000 a year
- Full-time
- Azure
- Computer Science
- 5 years
Senior iOS Engineer
VRK TECH —Los Angeles, CA
- Email
- Computer science
- Computer Science
- 5 years
- Commuter assistance
- Health insurance

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sr ui developer jobs near pasadena, ca

Senior iOS SDK Engineer

Everforth -
Los Angeles, CA

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Job Details

Full-time
$250,000 - $380,000 a year

Benefits

Internet reimbursement
Unlimited paid time off
Dental insurance
Parental leave
Vision insurance

Qualifications

iOS
Git
Continuous integration
APIs
DevOps automation
Multithreading
Production troubleshooting

Full Job Description

Senior iOS SDK Engineer

Job title: Senior iOS SDK Engineer

Salary: $250-$380k/year CAD
Location: 100% REMOTE

Requirements: Experience building and shipping customer-facing, externally consumed SDKs, Swizzling, Memory management, Multi-threading

Founded by one of the Scopely founders (~$5B exit in 2023 with 8 #1 games including MonopolyGo, Scrabble, Yahtzee, and Star Trek), we are a growth-stage Series B startup that's modernizing full-stack observability. We're backed by NEA, YCombinator, Greycroft, the founders of Testflight, Parse, and PagerDuty, and executives from AppDynamics, MoPub, Doordash, and Uber.

We are the evolution of real-user monitoring (RUM) built on OpenTelemetry. Teams choose us because NO OTHER observability platforms are purpose built for frontend mobile and web teams while providing devops with the vital information they need to drive proactive & confident decisions. As we continue to grow, we need your help!

We're currently looking for a Senior iOS SDK Engineer to join our Mobile Observability team. This role focuses on building and maintaining a high-performance, open-source Swift SDK used across all Apple platforms. You'll work close to the OS to create instrumentation libraries for performance monitoring, telemetry, hang detection, and crash reporting, while collaborating with other platform teams and contributing to standards like OpenTelemetry.

What you'll be doing:

Design, build, and maintain a modular Swift SDK used across all Apple platforms.
Implement core instrumentation features including crash reporting, hang detection, performance monitoring, and telemetry capture.
Build resilient data pipelines for offline storage, batching, retries, and efficient delivery under strict mobile runtime constraints.
Shape SDK architecture and API design, ensuring clarity, stability, and long-term backward compatibility.
Debug complex platform issues involving threading, memory, lifecycle behavior, and OS/device fragmentation.
Develop capture services for networking, user interactions, and system events using frameworks like MetricKit.
Optimize performance across startup time, binary size, memory usage, and thread safety.
Collaborate with cross-platform SDK teams (React Native, Flutter, Unity) to prevent downstream breaking changes.
Contribute to OpenTelemetry alignment and upstream standards work.
Partner with Product and Customer Success to incorporate developer feedback into the SDK roadmap.

What you need for this position:

Hands-on SDK or framework experience, building libraries used by other developers.
Should be familiar with Swizzling, Memory management, & Multi-threading.
Deep knowledge of Apple runtime behavior - memory, threading, lifecycle, and startup performance.
Strong production debugging skills across diverse devices and OS versions.
API design experience, including versioning and long-term evolution.
Understanding of binary compatibility and ABI stability.
Comfort with Git and modern CI/CD pipelines.
Openness to AI-assisted engineering workflows

Bonus skills:

Familiarity with Swift macros or Swift Syntax tooling.
Knowledge of OpenTelemetry or observability concepts (traces, spans, logs).
Experience supporting multiple Apple platforms from a shared codebase.Exposure to system frameworks like MetricKit or MXDiagnostic.
Ability to work in a multi-SDK ecosystem (React Native, Flutter, Unity).
Open-source contributions.
Experience supporting external developers or SDK users.

Benefits:

Competitive base salary + EQUITY!
Unlimited PTO
Medical, Dental, & Vision Insurance
Parental leave for BOTH parents
Annual company trip :-)
Internet stipend
Home office setup
Opportunities for learning & growth

Benefits

This job was first posted by CyberCoders on 07/19/2026 and applications will be accepted on an ongoing basis until the position is filled or closed.Everforth CyberCoders is proud to be an Equal Opportunity Employer

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, sexual orientation, gender identity or expression, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, status as a crime victim, disability, protected veteran status, or any other characteristic protected by law. Our hiring process includes AI screening for keywords and minimum qualifications, and a virtual recruiter as part of the application process. A human recruiter reviews all results. Click here for details on our virtual recruiter . Everforth CyberCoders will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable state and local law, including but not limited to the Los Angeles County Fair Chance Ordinance, the San Francisco Fair Chance Ordinance, and the California Fair Chance Act. Everforth CyberCoders is committed to working with and providing reasonable accommodation to individuals with physical and mental disabilities. Individuals needing special assistance or an accommodation while seeking employment can contact a member of our Human Resources team at [email protected] to make arrangements.

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Refine Your Search

sr ui developer jobs in pasadena, ca

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